From a retrospective study of 366 cases of breast cancer, following results are obtained. 1) Relative incidence of breast cancer is increased during recent 7 years as compared with total female cancer. 2) Invasive ductal carcinoma and invasive ductal carcinoma with a predominant intraductal component (ICPI) account for 78% of total breast cancer, and its ratio shows little variance during recent 7 years and as compared with previous studies. 3) The incidence of invasive lobular carcinoma is increased as compared with 10 years ago, but it seems more likely that the increase is due to difference in diagnostic criteria rather than due to real increase in incidence. 4) The average patients' age of five major histologic types of breast cancer is 47.3 year. The patient's age of invasive ductal carcinoma is highest and that of ICPI is lowest. 5) Outer upper quadrant is the most frequent site of breast cancer. Left side is slightly more frequent than right side. There is little variance among the histologic types in tumor location. 6) The average symptom duration of patients of major types of breast cancer is 8.4 month. It is longest in invasive ductal carcinoma and shortest in ICPI. 7) Invasive lobular carcinoma is largest in tumor size and intraductal carcinoma is smallest, among the major histological types. 8) Intraductal carcinoma is most freqnently accompanied by nipple discharge and Paget's disease. 9) The rate of axillary lymph node metastasis is highest in invasive lobular carcinoma, followed by invasive ductal carcinoma, medullary carcinoma, and ICPI, in order of freqnency. 10) Distant metastasis is to the bone, lung, liver and brain, in order of freqnency. Medullary carcinoma shows the highest rate of distant metastasis. 11) The important prognostic factors of breast cancer are histologic types, status of axillary lymph node metastasis, size of tumor and histologic grade of malignancy. But there is little difference in prognosis between invasive ductal carcinoma and medullary carcinoma.
Female ; Humans ; Incidence ; Neoplasm Metastasis ; Breast Neoplasms

We report a case of squamous metaplasia of the pleura observed in a 51 year old man. Squamous metaplasia of serosal surface, and in particular of the pleura, is uncommon. The pathogenesis of squamous metaplasia is obscure, but it may be associated with chronic irritation.

Typical nephroblastoma arise within the renal parenchyme and have pseudocapsules composed of compressed renal tissue, renal capsule and adjacent perirenal tissue. Therefore, it is rarely possible to determine whether the tumor arose from the cortex or medulla. Many authors believe that they are probably cortical in origin and arise from nodular renal blastema just beneath the renal capsule or in the centers of columns of Bertin. We experienced a nephroblastoma supposed to arise from peripelvic region. The patient was a 7 months old male infant with an abdominal mass. Left nephrectomy was done under the impression of nephroblastoma. Received specimen was a diffusely enlarged kidney with preserved normal outline, so it looked like a hydronephrotic kidney. On section, the pelvis and calyceal system were dilated and totally filled with a gray white soft mass. Most portion of the mass was floating freely in the calyces and pelvis, and only a small portion was attached to the renal parenchyme but without invasion to it. Microscopically the mass was a nephroblastoma containing many well developed glomeruli and tubules. We presumed that the tumor arose from a nodular renal blastema in the peripelvic region, because the tumor had no connection to the renal cortex.
Infant ; Male ; Female ; Humans

The heterotopic and tissues may be divided into two categories: those that are found in the head and neck region, and those that arise elsewhere. The latter type is rare and most cases are found in the lungs of patients with neural tube defect, particularly anencephaly. Our report descrives anencephalic male infant with heterotopic glial nodules in both lungs. The largest nodule is 2x1.5x1 cm, locates in the lower lobe of the left lung, and has a round gray-white cut surface with cystic spaces. Microscopically, the nodules consist of irregularly arranged astrocytes and glial fibers, in which are embedded gland-like or cystically dilated bronchioles. The astrocytes and glial fibers are strongly positive for glial fibrillary acidic protein and show astrocytic filaments on electron microscopy. This will be an additional case supporting the amniotic fluid aspiration/implantation theory of pathogenetic mechanism of distal heerotopic glial tissue.
Infant ; Male ; Female ; Humans

We report a rare cause of lung cavities, occurring in a patient with intrapulmonary cystic teratoma. Computed tomography (CT) provided us more detailed informations about the tumor characteristics containing fat and calcification, which could not be distinguished on the plain radiographs. In addition, CTscans clearly demonstrated the dilated anterior segmental bronchus of the left upper lobe entering the posterior aspect of the cavity.
Bronchi ; Humans ; Lung* ; Teratoma*

Angiomyolipoma is considered by many authors to be a hamartoma, occurring in a sporadic form or in association with tuberous sclerosis. This lesion consists of thick walled blood vessels, smooth muscle, and mature adipose tissue in varying amounts. We have experienced a case of the angiomyolipoma composed of monotypic epithelioid cells. The patient was a 69-year-old female. Clinically, there was no evidence of tuberous sclerosis. Microscopically, the tumor was composed of polygonal cells with abundant eosinophilic granular or clear cytoplasm, pleomorphic nuclei, prominent nucleoli, and multinucleated giant cells. The tumor cells showed positive reaction for HMB45, CD68, smooth muscle actin, and S-100, and negative reaction for epithelial membrane antigen, cytokeratin, vimentin, desmin, CD34, estrogen receptor, and progesterone receptor. Ultrastructual analysis showed the presence of glycogen, mitochondria, and other microorganelles in neoplastic cells. Melanosome or premelanosome was not identified.
Actins ; Adipose Tissue ; Aged ; Angiomyolipoma* ; Blood Vessels ; Cytoplasm ; Desmin ; Eosinophils ; Epithelioid Cells ; Estrogens ; Female ; Giant Cells ; Glycogen ; Hamartoma ; Humans ; Keratins ; Kidney* ; Melanosomes ; Mitochondria ; Mucin-1 ; Muscle, Smooth ; Receptors, Progesterone ; Tuberous Sclerosis ; Vimentin

The limb-body wall malformation complex is a sporadic congenital anomaly characterized by protean manifestations. The diagnosis is based upon the presence of at least two out of craniofacial anomaly, body wall defect, and limb abnormalities. We present a case of limb-body wall malformation complex. This case shows abdominal and pelvic wall defects with eventration of the viscera. It also shows an absence of right kidney, polycystic left kidney, absence of external genitalia and anus, and lower extremity abnormalities. The right lower extremity is absent and the deformed left leg shows malformed foot-like structure attached to the shin in addition to a normally positioned left foot. Our patient is the first case of complete absence of the external genitalia associated with limb-body wall malformation complex in Korean publications and the seventh in English publications.

Following results were obtained from the light microscopic and stereomicroscopic observations of the breasts of rats treated with 9, 10-Dimethyl-1,2-Benzanthracene(DMBA). 1) Adenocarcinomas developed in 17 rats (24%) among 70 DMBA-treated rats. 2) Terminal and buds (TEB) were observed longer in DMBA-treated rats than in control group, but they finally disppeared 4 monthes after treatment. 3) Many hyperplastic alveolar nodules (HAN) developed in DMBA-treated rats. 4) There were no transitional lesions between TEB and adenocarcinoma or HAN and adenocarcinoma. 5) The number of lobules was decreased in DMBA-treated rats. On the other hand, terminal ducts were increased in number. These findings suggest that DMBA stimulate the regression of lobules and induce to form terminal ducts from which adenocarcinomas and HAN develop independently.
Rats ; Animals ; Adenocarcinoma ; Breast Neoplasms

BACKGROUND: Because Chlamydia trachomatis infection is the most frequent etiological agent in sexually transmitted diseases, accurate diagnostic methods are essential. The enzyme-linked fluorescence assay and Papanicolaou smear were evaluated for detection of C. trachomatis in patients with vaginitis. METHODS: Endocervical swabs from 78 women with symptoms of vaginal discharge, itching or lower abdominal pain in the obstetrics/gynecology department of Gyeongsang National University Hospital were tested by Vidas Chlamydia assay. Slides were stained with Papanicolaou and Giemsa stain to demonstrate inclusion body. RESULTS: Five (6.4%) of 78 endocervical specimens were positive by Vidas Chlamydia assay. Only one case was positve for C. trachomatis with Papanicolaou stain. We could not detect any C. trachomatis by Giemsa stain. CONCLUSION: The Vidas Chlamydia test allows sensitive and high-volume testing for chlamydiae and could be useful for the diagnosis of infection with C. trachomatis in patients with vaginitis and pelvic inflammatory disease.
Abdominal Pain ; Azure Stains ; Chlamydia trachomatis* ; Chlamydia* ; Diagnosis ; Female ; Fluorescence ; Humans ; Inclusion Bodies ; Papanicolaou Test ; Pelvic Inflammatory Disease ; Pruritus ; Sexually Transmitted Diseases ; Vaginal Discharge ; Vaginitis

Forty eight female Sprague-Dawley rats received a subcutaneous implant containing 12.5 mg estradiol ant the age of 3 weeks. Three rats were killed in 1, 2, 3, 4, 6 weeks and in every month during 2~12 months after implantation, and the breasts were examined by light microscope. In all rats, enlargement of terminal end buds was obseved in 1~2 weeks, maximum development of hyperplastic alveolar nodules in 3 weeks, and marked dilatation and secretion of alveoli or ducts in 1~12 months after implantation. Ductal epithelial hyperplasia was observed in 27 rats and carcinomas developed in 23 rats in 2~12 months after implantation. It was thought that the changes induced by estradiol are more similar to the human breast lesions, compared with changes induced by chemical carcinogens such as dimethylbenzanthracene(DMBA), because breast carcinomas developed in close relationship with ductal epithelial hyperplasia in both estradiol-treated rats and humans, but not in DMBA-treated rats.
Female ; Humans ; Rats ; Animals ; Carcinogens